Hi Michelle
They do ask for it in capital letters to make it easier to read, but I'm sure you're not the only person to have missed that. As long as your writing is legible they will read it, however, if you're worried keep trying to get through to them to point out that you will send it again if they require it - or drop them a letter, saying you missed that point and ask them to contact you if you need to send again. (They won't but at least it's then on record!)
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems